Sky News AustraliaGunman in Afghanistan forces uniform kills 3 American troops in Helmand provinceCBS News(CBS News) - A gunman wearing an Afghan military uniform has shot to death three American troops in the southern Helmand province, according to a spokesperson for the US-led international military coalition in the country, known as ISAF.3 US NATO Service Members Killed in AfghanistanVoice of America (blog)3 US troops killed by man in Afghan army uniformThe Associated Press3 US Troops Killed by Man in Afghan Army...ABC NewsTimes of Indiaall 215 news articles »